Formation damage of sandstone geothermal reservoirs: During decreased salinity water injection
Applied Energy(2022)
摘要
•Injected water caused the formation damage, including permeability reduction, pore-throat shrinkage, and water-wettability enhancement.•Compaction, fine migration, and mineral dissolution worked synergistically to trigger the formation damage.•Mineral dissolution weakened the mechanical strength of the minerals and facilitated the compaction.
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关键词
Sandstone geothermal reservoirs,Decreased salinity water injection,Formation damage,Fine migration,Mineral dissolution,Compaction
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